1.7k citations · 3.3k across the 29 of their papers we have counts for
29 papers
Blue spectral inflation
Franz E. Schunck, Eckehard W. Mielke
We reconsider the nonlinear second order Abel equation of Stewart and Lyth, which follows from a nonlinear second order slow-roll approximation. We find a new eigenvalue spectrum i…
TOPICAL REVIEW: General relativistic boson stars
Franz E. Schunck, Eckehard W. Mielke
There is accumulating evidence that (fundamental) scalar fields may exist in Nature. The gravitational collapse of such a boson cloud would lead to a boson star (BS) as a new type…
Einsteinian gravity from a topological action
Eckehard W. Mielke
The curvature-squared model of gravity, in the affine form proposed by Weyl and Yang, is deduced from a topological action in 4D. More specifically, we start from the Pontrjagin (o…
Dark Matter Halos as Bose-Einstein Condensates
Eckehard W. Mielke, Burkhard Fuchs, Franz E. Schunck
Galactic dark matter is modelled by a scalar field in order to effectively modify Kepler's law without changing standard Newtonian gravity. In particular, a solvable toy model with…
Realistic Exact Solution for the Exterior Field of a Rotating Neutron Star
Leonardo. A. Pachon, Jorge A. Rueda, Jose D. Sanabria-Gomez
A new six-parametric, axisymmetric and asymptotically flat exact solution of Einstein-Maxwell field equations having reflection symmetry is presented. It has arbitrary physical par…
Anomalies and gravity
Eckehard W. Mielke
Anomalies in Yang-Mills type gauge theories of gravity are reviewed. Particular attention is paid to the relation between the Dirac spin, the axial current j_5 and the non-covarian…